WO2014073987A1 - Article carrier for a grading apparatus - Google Patents

Article carrier for a grading apparatus Download PDF

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Publication number
WO2014073987A1
WO2014073987A1 PCT/NZ2013/000199 NZ2013000199W WO2014073987A1 WO 2014073987 A1 WO2014073987 A1 WO 2014073987A1 NZ 2013000199 W NZ2013000199 W NZ 2013000199W WO 2014073987 A1 WO2014073987 A1 WO 2014073987A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
article
article carrier
rotation
connecting member
Prior art date
Application number
PCT/NZ2013/000199
Other languages
French (fr)
Other versions
WO2014073987A8 (en
Inventor
Hamish Alexander Nigel Kennedy
Isaac James Anstis
Shon Cornelius VAN TIEL
Original Assignee
Compac Technologies Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compac Technologies Limited filed Critical Compac Technologies Limited
Priority to DK13852682.7T priority Critical patent/DK2917138T3/en
Priority to JP2015541719A priority patent/JP2015533649A/en
Priority to US14/441,623 priority patent/US9527113B2/en
Priority to AU2013341875A priority patent/AU2013341875A1/en
Priority to BR112015010460A priority patent/BR112015010460A2/en
Priority to ES13852682T priority patent/ES2718206T3/en
Priority to PL13852682T priority patent/PL2917138T3/en
Priority to CN201380057904.1A priority patent/CN104981419B/en
Priority to KR1020157014874A priority patent/KR20150110476A/en
Priority to EP13852682.7A priority patent/EP2917138B1/en
Priority to MX2015005709A priority patent/MX357853B/en
Publication of WO2014073987A1 publication Critical patent/WO2014073987A1/en
Publication of WO2014073987A8 publication Critical patent/WO2014073987A8/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/08—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/94—Devices for flexing or tilting travelling structures; Throw-off carriages
    • B65G47/96—Devices for tilting links or platform
    • B65G47/962—Devices for tilting links or platform tilting about an axis substantially parallel to the conveying direction
    • B65G47/965—Devices for tilting links or platform tilting about an axis substantially parallel to the conveying direction tilting about a sided-axis, i.e. the axis is not located near the center-line of the load-carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C2501/00—Sorting according to a characteristic or feature of the articles or material to be sorted
    • B07C2501/009—Sorting of fruit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
    • B65G2203/02—Control or detection
    • B65G2203/0208—Control or detection relating to the transported articles
    • B65G2203/0258—Weight of the article

Definitions

  • the invention relates to carriers for articles, particularly for use within grading systems, and in particular, but in not exclusively, to an article carrier which is suitable for conveying elongate articles of produce.
  • Article carriers are often used in fruit graders to transport fruit through various measurement stages for grading purposes and to eject fruit at a required location dependent on the result of the grading process.
  • Such article carriers usually include an endless circuit of carriers or cups on a conveyor chain with the cups situated to unload fruit at one of a plurality of stations.
  • article carriers of the prior art use rollers to rotate the fruit as they travel along on the conveyor, in order to present the entire surface of the fruit to a grading apparatus such as a camera.
  • the article carriers may also be provided with a mechanism by which a portion of the carrier on which the fruit bears can be isolated from the rest of the carrier, and the supporting portion of the conveyor, in order to allow the fruit to be weighed while it is being conveyed.
  • US patent 7,410,044 describes an example of one such article carrier.
  • Such carriers while well suited to use with generally spherically shaped fruit and vegetables such as apples and the like, are not suitable for use with elongate fruit or vegetables such as cucumbers, mangoes, pears, avocados and the like.
  • the article carrier remains connected to, and in motion with, the conveyor chain, while the article is being weighed.
  • the horizontal component of the force exerted by the conveyor chain on the article carrier has no effect on the weighing operation.
  • the connection between the conveyor chain and the carrier portion which is bearing on the load cell exert the minimum possible force on the carrier portion in the vertical direction.
  • an article carrier comprising a mounting portion adapted for connection to a conveyor, a connecting member rotatably connected to the mounting portion and rotatable relative to the mounting portion about a first axis of rotation, a carrier portion rotatably connected to the connecting member and rotatable relative to the connecting member about a second axis of rotation, wherein the first axis of rotation is spaced apart from the second axis of rotation, and a releasably lockable carrier support means adapted to support the carrier portion in a carriage position when in a locked state, and to allow rotation of the carrier support portion to a discharge position when in an unlocked state.
  • first and second axes of rotation are substantially parallel to a direction of travel of the article carrier when in use.
  • the carrier portion comprises a rotation limiting portion adapted to limit rotation of the carrier portion relative to the connecting member when the releasably lockable carrier support means is in the locked state.
  • the rotation limiting portion bears on the connecting member.
  • the carrier portion is moveable to a weighing position in which the rotation limiting portion does not bear on the connecting member.
  • the releasably lockable carrier support means comprises an over-centre linkage.
  • the over-centre linkage is rotatably connected to the mounting portion.
  • the over-centre linkage is rotatably connected to the connecting member.
  • connection between the over-centre linkage and the connecting member is co- linear with the second axis of rotation.
  • the over-centre linkage comprises a first portion which is connected to the mounting portion and a second portion which is connected to the connecting member, wherein the first and second portions are rotatably connected.
  • the first portion of the over-centre linkage comprises a trigger portion for moving the over centre linkage to an unlocked position.
  • the article carrier is provided with a plurality of carrier portions.
  • the article carrier has at least one carrier portion on each side of a central plane of the mounting portion.
  • the article carrier has at least one plane of symmetry.
  • the article carrier has two planes of symmetry.
  • a sorting apparatus comprising a plurality of article carriers of the first aspect.
  • the invention may also be said broadly to consist in the parts, elements and features referred to or indicated in the specification of the application, individually or collectively, in any or all combinations of two or more of said parts, elements or features, and where specific integers are mentioned herein which have known equivalents in the art to which the invention relates, such known equivalents are deemed to be incorporated herein as if individually set forth.
  • an article carrier and/or a sorting apparatus comprising the article carrier is substantially as herein described, with reference to the accompanying drawings.
  • Figure 1 Is a front view of an article carrier according to one embodiment of the present invention, with the carrier in a carriage position.
  • Figure 2 Is an exploded view of the article carrier of Figure 1.
  • Figure 3 Is a transverse cross-section of the article carrier of Figure 1 .
  • Figure 4 is a partial side view of a sorting apparatus comprising a plurality of the article conveyors of Figure , conveying an item of produce.
  • Figure 5 Is a front view of the article carrier of Figure 1 , with the releasable locking means in an unlocked position and the carriage portion in a lower weighing position.
  • Figure 6 Is a transverse cross-section of one side of the article carrier with the carriage portion in the lower weighing position.
  • Figure 6A Is an enlarged view of detail "A" of Figure 6.
  • Figure 7 Is a front view of the article carrier of Figure 1 , with the releasable locking means in an unlocked position and the carriage portion in an upper weighing position.
  • Figure 8 Is a transverse cross-section of one side of the article carrier with the carriage portion in the upper weighing position.
  • Figure 8A Is an enlarged view of detail "B" of Figure 8.
  • Figures 9a-9d show a sequence of partial front views of the article carrier of Figure 1 in use, discharging an article.
  • Figure 10 Is a transverse cross-section of one side of the article carrier, with the carriage portion in the discharge position.
  • an article carrier of the present invention is generally referenced by arrow 100.
  • the article carrier 100 comprises a mounting portion 1 for mounting the carrier 100 to a conveyor chain (not shown), for example by means of a clip 2.
  • the carrier 100 comprises four carrier portions 3, with two carrier portions 3 on either side of the mounting portion 1.
  • other embodiments may have more or fewer carrier portions on either side of the mounting portion, or may have one or more carrier portions on only one side of the mounting portion.
  • the article carrier is preferably substantially symmetrical about a central longitudinal plane, and about a vertical plane which is orthongonal to the longitudinal plane, so that the carrier can be mounted to the conveyor chain in either direction.
  • the carrier portions 3 are provided as elongate "fingers", and define a cupped shape in order to securely hold an article.
  • Each carrier portion 3 is connected to the mounting portion 1 by a connecting member 4.
  • the connecting member 4 is rotatably connected to the mounting portion 1 such that it can rotate about a first axis of rotation R1.
  • the carrier portion 3 is rotatably connected to the connecting member 4 such that it can rotate relative to the connecting member 4 about a second axis of rotation R2.
  • the first and second axes of rotation R1 , R2 are spaced apart, and in many embodiments are at opposite ends of the connecting member 4.
  • the article carrier 100 is further provided with a releasable carrier support means 5.
  • the carrier support means 5 comprises an over-centre type linkage which has a first portion 5a rotatably connected to the mounting portion 1 at or adjacent a first end 6 and a second portion 5b rotatably connected to the connecting member 4 at a second end 7.
  • the linkage 5 is of a type which can transmit compressive forces when a link, preferably a hinged connection 5c, between the first and second portions 5a, 5b is on one side of an axis connecting the rotatable connections at either end of the link, but which collapses when the central link is moved to the opposite side of that axis.
  • connection between the second end 7 of the over-centre linkage 5 and the connecting member 4 is collinear with the connection between the connecting member 4 and the carrier portion 3.
  • the connection between the second end 7 of the over-centre linkage and the connecting member 4 may be at any point on the connecting member 4 which is not collinear with the connecting member's connection to the mounting portion 1.
  • the over-centre linkage 5 is in a locked position, suitable for conveying an article on the carrier portion 3.
  • the carrier portion comprises a rotation limiting formation 10 which extends to an opposite side of the second axis of rotation R2 from the side on which the centre of gravity C of the carrier portion is located.
  • the rotation limiting portion 10 is shaped to bear against the connecting member 4 in order to resist rotation of the carrier portion 3 under the influence of gravity.
  • the carrier portion 3 is able to rotate in the opposite direction (i.e anticlockwise in Figure 3) about the second axis of rotation R2, although rotation in this direction is ultimately limited by interference between an inner edge 13 of the carrier portion (see Figure 6) and the mounting portion 1.
  • Figure 4 shows an article of produce P being conveyed by a sorting system of the present invention, with the article of produce being supported by a plurality of article carriers 100.
  • the article carrier 100 is particularly suited for use with sorting systems which individually weigh each item.
  • a laterally outward force on a trigger portion 1 1 of the over-centre linkage for example with a ramp or cam surface, or a solenoid operated trigger pushing mechanism
  • the over-centre linkage 5 can be moved from the locked position shown in Figure 1 over-centre to the unlocked position shown in Figures 5 and 6, whereby the over-centre linkage 5 no longer supports the weight of the connecting member 4, carrier portion 3 and any produce carried on the carrier portion 3.
  • the over-centre mechanism 5 is unlocked as the carrier portion 3 moves over a weighing means W.
  • the unsupported carrier portion 3 bears on the weighing means W, and so the weighing means W is able to measure the weight of the item on the carrier portion 3 (and the carrier portion itself).
  • the sorting apparatus may comprise a support surface (not shown) immediately before and/or after the weighing means in order to guide the carrier portion 3 on and/or off the weighing means W.
  • the underside of the carrier portion 3 is provided with a pair of spaced apart downwardly protruding bearing surfaces 12. These bearing surfaces 12 ensure that the contact between the carrier portion 3 and the weighing means W occurs in a consistent and predictable place, and also helps to minimise the drag created by sliding the carrier portion 3 over the surface of the weighing means W.
  • the centre of the carrier portion 3 maintains a substantially horizontal orientation during the weighing operation.
  • Figures 5 and 6 show the carrier portion 3 at the lowest position in which accurate weighing can occur. If the carrier portion 3 were to be lowered any further relative to the mounting portion 1 then an inner edge 13 of the carrier portion 3 would abut the mounting portion 1 , thereby making accurate weighing impossible.
  • Figures 7 and 8 show the carrier portion 3 at the highest position in which weighing can occur. Further elevation (relative to the mounting portion 1 ) of the carrier portion 3 beyond this position will result in the over-centre linkage 5 being placed in tension and/or the rotation limiting portion 10 abutting the connecting member 4.
  • the centre of the carrier portion 3 is approximately 6mm higher (relative to the mounting portion 1 ) when in the highest position (shown in Figures 7 and 8), relative to when it is in the lowest position (shown in Figures 5 and 6).
  • the rotation limiting portion 10 does not abut or bear on the connecting member 4 (or any other member) when the carrier portion is in a weighing position.
  • the weighing means is preferably located such that the first and second axes of rotation R1 , R2 are both horizontally orientated during the weighing operation.
  • Figures 9a-9d illustrate an article of produce A being discharged from the article carrier 100 as a result of the releasable carrier support means 5 being unlocked and the article carrier 3 moving to a discharge position.
  • the releasable carrier support means 5 is unlocked when the article carrier 100 is adjacent a selected receiving portion of the sorting apparatus.
  • the releasable carrier support means 5 is preferably unlocked by a solenoid operated trigger pushing mechanism or similar apparatus (not shown), as has been described above.
  • the particular receiving portion which the sorting apparatus elects to eject the produce into may depend on the weight of the produce, as well as information gathered from other assessment apparatus such as cameras and the like.
  • the article A tends to fall substantially vertically, with the article carrier 100 exerting almost no horizontal force on the article A as it drops.
  • the carrier portion 3 is able to rotate from a substantially horizontal orientation to a substantially vertical one.
  • Figure 10 shows the carrier portion 3 in the discharge position.
  • the sorting apparatus is preferably provided with a ramp or cam surface (not shown) immediately ahead a final receiving portion of the apparatus. The ramp acts on the trigger portion of any article carriers which have not yet been released into the discharge position. In this way it is assured that the produce is discharged from all of the article carriers 100 before they begin a new cycle of the apparatus.

Abstract

An article carrier (100) has a mounting portion (1) adapted for connection to a conveyor. A connecting member (4) is rotatably connected to the mounting portion (1) and is rotatable relative to the mounting portion (1) about a first axis of rotation (R1). A carrier portion (3) is rotatably connected to the connecting member (4) and is rotatable relative to the connecting member (4) about a second axis of rotation (R2), wherein the first axis of rotation (R1) is spaced apart from the second axis of rotation (R2). A releasably lockable carrier support means (5) is provided to support the carrier portion (3) in a carriage position when in a locked state, and to allow rotation of the carrier portion (3) to a discharge position when in an unlocked state.

Description

ARTICLE CARRIER FOR A GRADING APPARATUS
Technical field of the Invention
The invention relates to carriers for articles, particularly for use within grading systems, and in particular, but in not exclusively, to an article carrier which is suitable for conveying elongate articles of produce. Background of the Invention
Article carriers are often used in fruit graders to transport fruit through various measurement stages for grading purposes and to eject fruit at a required location dependent on the result of the grading process. Such article carriers usually include an endless circuit of carriers or cups on a conveyor chain with the cups situated to unload fruit at one of a plurality of stations.
Many of the article carriers of the prior art use rollers to rotate the fruit as they travel along on the conveyor, in order to present the entire surface of the fruit to a grading apparatus such as a camera. The article carriers may also be provided with a mechanism by which a portion of the carrier on which the fruit bears can be isolated from the rest of the carrier, and the supporting portion of the conveyor, in order to allow the fruit to be weighed while it is being conveyed. US patent 7,410,044 describes an example of one such article carrier.
Such carriers, while well suited to use with generally spherically shaped fruit and vegetables such as apples and the like, are not suitable for use with elongate fruit or vegetables such as cucumbers, mangoes, pears, avocados and the like.
Another type of article carrier is known to the art, in which the article is held to one side of the conveyor chain on elongate "fingers". While such carriers are suitable for elongate fruit or vegetables, they typically do not allow the produce to be weighed accurately.
In the examples discussed above, the article carrier remains connected to, and in motion with, the conveyor chain, while the article is being weighed. The horizontal component of the force exerted by the conveyor chain on the article carrier has no effect on the weighing operation. However, for the weighing operation to be accurate it is important that the connection between the conveyor chain and the carrier portion which is bearing on the load cell exert the minimum possible force on the carrier portion in the vertical direction.
The reference to any prior art in the specification is not, and should not be taken as, an acknowledgement or any form of suggestion that the prior art forms part of the common general knowledge in any country.
Object of the Invention It is an object of the present invention to provide an article carrier for a grading apparatus which will overcome or ameliorate problems with the article carriers of the prior art, or which will at least provide a useful choice.
Other objects of the present invention may become apparent from the following description, which is given by way of example only.
Brief Summary of the Invention
According to one aspect of the present invention there is provided an article carrier comprising a mounting portion adapted for connection to a conveyor, a connecting member rotatably connected to the mounting portion and rotatable relative to the mounting portion about a first axis of rotation, a carrier portion rotatably connected to the connecting member and rotatable relative to the connecting member about a second axis of rotation, wherein the first axis of rotation is spaced apart from the second axis of rotation, and a releasably lockable carrier support means adapted to support the carrier portion in a carriage position when in a locked state, and to allow rotation of the carrier support portion to a discharge position when in an unlocked state.
Preferably the first and second axes of rotation are substantially parallel to a direction of travel of the article carrier when in use.
Preferably the carrier portion comprises a rotation limiting portion adapted to limit rotation of the carrier portion relative to the connecting member when the releasably lockable carrier support means is in the locked state. Preferably the rotation limiting portion bears on the connecting member.
Preferably when the releasably lockable carrier support means is in the unlocked state, the carrier portion is moveable to a weighing position in which the rotation limiting portion does not bear on the connecting member.
Preferably the releasably lockable carrier support means comprises an over-centre linkage.
Preferably the over-centre linkage is rotatably connected to the mounting portion.
Preferably the over-centre linkage is rotatably connected to the connecting member.
Preferably the connection between the over-centre linkage and the connecting member is co- linear with the second axis of rotation.
Preferably the over-centre linkage comprises a first portion which is connected to the mounting portion and a second portion which is connected to the connecting member, wherein the first and second portions are rotatably connected. Preferably the first portion of the over-centre linkage comprises a trigger portion for moving the over centre linkage to an unlocked position.
Preferably the article carrier is provided with a plurality of carrier portions. Preferably the article carrier has at least one carrier portion on each side of a central plane of the mounting portion.
Preferably the article carrier has at least one plane of symmetry. Preferably the article carrier has two planes of symmetry.
According to a second aspect of the present invention there is provided a sorting apparatus comprising a plurality of article carriers of the first aspect. The invention may also be said broadly to consist in the parts, elements and features referred to or indicated in the specification of the application, individually or collectively, in any or all combinations of two or more of said parts, elements or features, and where specific integers are mentioned herein which have known equivalents in the art to which the invention relates, such known equivalents are deemed to be incorporated herein as if individually set forth.
According to a still further aspect of the present invention, an article carrier and/or a sorting apparatus comprising the article carrier is substantially as herein described, with reference to the accompanying drawings.
Further aspects of the invention, which should be considered in all its novel aspects, become apparent from the following description given by way of example of possible embodiments of the invention.
Brief Description of the Figures
Figure 1 : Is a front view of an article carrier according to one embodiment of the present invention, with the carrier in a carriage position. Figure 2: Is an exploded view of the article carrier of Figure 1.
Figure 3: Is a transverse cross-section of the article carrier of Figure 1 .
Figure 4: is a partial side view of a sorting apparatus comprising a plurality of the article conveyors of Figure , conveying an item of produce.
Figure 5: Is a front view of the article carrier of Figure 1 , with the releasable locking means in an unlocked position and the carriage portion in a lower weighing position.
Figure 6: Is a transverse cross-section of one side of the article carrier with the carriage portion in the lower weighing position.
Figure 6A: Is an enlarged view of detail "A" of Figure 6. Figure 7: Is a front view of the article carrier of Figure 1 , with the releasable locking means in an unlocked position and the carriage portion in an upper weighing position. Figure 8: Is a transverse cross-section of one side of the article carrier with the carriage portion in the upper weighing position.
Figure 8A: Is an enlarged view of detail "B" of Figure 8. Figures 9a-9d: show a sequence of partial front views of the article carrier of Figure 1 in use, discharging an article.
Figure 10: Is a transverse cross-section of one side of the article carrier, with the carriage portion in the discharge position.
Brief Description of Preferred Embodiments
Referring first to Figures 1 and 2, an article carrier of the present invention is generally referenced by arrow 100.
The article carrier 100 comprises a mounting portion 1 for mounting the carrier 100 to a conveyor chain (not shown), for example by means of a clip 2.
One or more carrier portions 3 are mounted to the mounting portion 1. In the embodiment shown the carrier 100 comprises four carrier portions 3, with two carrier portions 3 on either side of the mounting portion 1. However, other embodiments (not shown) may have more or fewer carrier portions on either side of the mounting portion, or may have one or more carrier portions on only one side of the mounting portion. The article carrier is preferably substantially symmetrical about a central longitudinal plane, and about a vertical plane which is orthongonal to the longitudinal plane, so that the carrier can be mounted to the conveyor chain in either direction.
In the embodiment shown the carrier portions 3 are provided as elongate "fingers", and define a cupped shape in order to securely hold an article. Each carrier portion 3 is connected to the mounting portion 1 by a connecting member 4. The connecting member 4 is rotatably connected to the mounting portion 1 such that it can rotate about a first axis of rotation R1. The carrier portion 3 is rotatably connected to the connecting member 4 such that it can rotate relative to the connecting member 4 about a second axis of rotation R2. The first and second axes of rotation R1 , R2 are spaced apart, and in many embodiments are at opposite ends of the connecting member 4.
The article carrier 100 is further provided with a releasable carrier support means 5. In the embodiment shown the carrier support means 5 comprises an over-centre type linkage which has a first portion 5a rotatably connected to the mounting portion 1 at or adjacent a first end 6 and a second portion 5b rotatably connected to the connecting member 4 at a second end 7. The linkage 5 is of a type which can transmit compressive forces when a link, preferably a hinged connection 5c, between the first and second portions 5a, 5b is on one side of an axis connecting the rotatable connections at either end of the link, but which collapses when the central link is moved to the opposite side of that axis.
In the embodiment shown the connection between the second end 7 of the over-centre linkage 5 and the connecting member 4 is collinear with the connection between the connecting member 4 and the carrier portion 3. However, this is not necessarily the case. The connection between the second end 7 of the over-centre linkage and the connecting member 4 may be at any point on the connecting member 4 which is not collinear with the connecting member's connection to the mounting portion 1.
In the embodiment shown in Figure 1 , the over-centre linkage 5 is in a locked position, suitable for conveying an article on the carrier portion 3.
In order to maintain the carrier portion 3 in a substantially horizontal orientation (in use), suitable for conveying an article, the rotation of the carrier portion 3 relative to the connecting member 4 must be limited in order to avoid rotation of the carrier portion 3 under its own weight (and the weight of the article). As is best seen in Figure 3, in a preferred embodiment the carrier portion comprises a rotation limiting formation 10 which extends to an opposite side of the second axis of rotation R2 from the side on which the centre of gravity C of the carrier portion is located. The rotation limiting portion 10 is shaped to bear against the connecting member 4 in order to resist rotation of the carrier portion 3 under the influence of gravity. In the embodiment shown the carrier portion 3 is able to rotate in the opposite direction (i.e anticlockwise in Figure 3) about the second axis of rotation R2, although rotation in this direction is ultimately limited by interference between an inner edge 13 of the carrier portion (see Figure 6) and the mounting portion 1. Figure 4 shows an article of produce P being conveyed by a sorting system of the present invention, with the article of produce being supported by a plurality of article carriers 100.
Referring next to Figures 5 and 6, the article carrier 100 is particularly suited for use with sorting systems which individually weigh each item. By exerting a laterally outward force on a trigger portion 1 1 of the over-centre linkage (for example with a ramp or cam surface, or a solenoid operated trigger pushing mechanism), the over-centre linkage 5 can be moved from the locked position shown in Figure 1 over-centre to the unlocked position shown in Figures 5 and 6, whereby the over-centre linkage 5 no longer supports the weight of the connecting member 4, carrier portion 3 and any produce carried on the carrier portion 3.
The over-centre mechanism 5 is unlocked as the carrier portion 3 moves over a weighing means W. The unsupported carrier portion 3 bears on the weighing means W, and so the weighing means W is able to measure the weight of the item on the carrier portion 3 (and the carrier portion itself). In some embodiments the sorting apparatus may comprise a support surface (not shown) immediately before and/or after the weighing means in order to guide the carrier portion 3 on and/or off the weighing means W.
In the embodiment shown the underside of the carrier portion 3 is provided with a pair of spaced apart downwardly protruding bearing surfaces 12. These bearing surfaces 12 ensure that the contact between the carrier portion 3 and the weighing means W occurs in a consistent and predictable place, and also helps to minimise the drag created by sliding the carrier portion 3 over the surface of the weighing means W.
As can be seen in Figures 5 and 6, in the embodiment shown, the centre of the carrier portion 3 maintains a substantially horizontal orientation during the weighing operation.
Figures 5 and 6 show the carrier portion 3 at the lowest position in which accurate weighing can occur. If the carrier portion 3 were to be lowered any further relative to the mounting portion 1 then an inner edge 13 of the carrier portion 3 would abut the mounting portion 1 , thereby making accurate weighing impossible. Figures 7 and 8 show the carrier portion 3 at the highest position in which weighing can occur. Further elevation (relative to the mounting portion 1 ) of the carrier portion 3 beyond this position will result in the over-centre linkage 5 being placed in tension and/or the rotation limiting portion 10 abutting the connecting member 4. In one embodiment the centre of the carrier portion 3 is approximately 6mm higher (relative to the mounting portion 1 ) when in the highest position (shown in Figures 7 and 8), relative to when it is in the lowest position (shown in Figures 5 and 6). The rotation limiting portion 10 does not abut or bear on the connecting member 4 (or any other member) when the carrier portion is in a weighing position.
Those skilled in the art will appreciate that because the first and second axes of rotation R1 , R2 are substantially parallel to the direction of travel of the carrier portion 3 as it moves over the weighing means W (and the direction of travel of the conveyor chain), the force exerted by the connecting member 4 to move the carrier portion 3 over the weighing means W has little or no vertical component, and so has a minimal effect on the accuracy of the weight measurement. To further minimise any vertical component of force exerted by the connecting member, the weighing means is preferably located such that the first and second axes of rotation R1 , R2 are both horizontally orientated during the weighing operation. Figures 9a-9d illustrate an article of produce A being discharged from the article carrier 100 as a result of the releasable carrier support means 5 being unlocked and the article carrier 3 moving to a discharge position.
The releasable carrier support means 5 is unlocked when the article carrier 100 is adjacent a selected receiving portion of the sorting apparatus. The releasable carrier support means 5 is preferably unlocked by a solenoid operated trigger pushing mechanism or similar apparatus (not shown), as has been described above. The particular receiving portion which the sorting apparatus elects to eject the produce into may depend on the weight of the produce, as well as information gathered from other assessment apparatus such as cameras and the like.
As can be seen in Figures 9a-9d, the article A tends to fall substantially vertically, with the article carrier 100 exerting almost no horizontal force on the article A as it drops. The carrier portion 3 is able to rotate from a substantially horizontal orientation to a substantially vertical one. Figure 10 shows the carrier portion 3 in the discharge position. The sorting apparatus is preferably provided with a ramp or cam surface (not shown) immediately ahead a final receiving portion of the apparatus. The ramp acts on the trigger portion of any article carriers which have not yet been released into the discharge position. In this way it is assured that the produce is discharged from all of the article carriers 100 before they begin a new cycle of the apparatus.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like, are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense, that is to say, in the sense of "including, but not limited to".
Where in the foregoing description, reference has been made to specific components or integers of the invention having known equivalents, then such equivalents are herein incorporated as if individually set forth.
Although this invention has been described by way of example and with reference to possible embodiments thereof, it is to be understood that modifications or improvements may be made thereto without departing from the spirit or scope of the appended claims.

Claims

WHAT WE CLAIM IS
An article carrier comprising a mounting portion adapted for connection to a conveyor, a connecting member rotatably connected to the mounting portion and rotatable relative to the mounting portion about a first axis of rotation, a carrier portion rotatably connected to the connecting member and rotatable relative to the connecting member about a second axis of rotation, wherein the first axis of rotation is spaced apart from the second axis of rotation, and a releasably lockable carrier support means adapted to support the carrier portion in a carriage position when in a locked state, and to allow rotation of the carrier portion to a discharge position when in an unlocked state.
2. The article carrier of claim 1 , wherein the first and second axes of rotation are
substantially parallel to a direction of travel of the article carrier when in use.
The article carrier of claim 1 or 2, wherein the carrier portion comprises a rotation limiting portion adapted to limit rotation of the carrier portion relative to the connecting member when the releasably lockable carrier support means is in the locked state.
The article carrier of claim 3, wherein the rotation limiting portion bears on the connecting member.
The article carrier of any one of claims 1 to 4, wherein, when the releasably lockable carrier support means is in the unlocked state, the carrier portion is moveable to a weighing position in which the rotation limiting portion does not bear on the connecting member.
6. The article carrier of any one of claims 1 to 5, wherein the releasably lockable carrier support means comprises an over-centre linkage.
7. The article carrier of claim 6, wherein the over-centre linkage is rotatably connected to the mounting portion.
8. The article carrier of claim 6 or 7, wherein the over-centre linkage is rotatably connected to the connecting member.
9. The article carrier of claim 8, wherein the connection between the over-centre linkage and the connecting member is co-linear with the second axis of rotation.
10. The article carrier of claim 6, wherein the over-centre linkage comprises a first portion which is connected to the mounting portion and a second portion which is connected to the connecting member, wherein the first and second portions are rotatably connected.
11 . The article carrier of claim 0, wherein the first portion of the over-centre linkage
comprises a trigger portion for moving the over-centre linkage to an unlocked position.
12. The article carrier of any one of the preceding claims, wherein the article carrier is provided with a plurality carrier portions.
13. The article carrier of any one of claims 1 to 12, wherein the article carrier has at least one carrier portion on each side of a central plane of the mounting portion.
14. The article carrier of any one of claims 1 to 13, wherein the article carrier has at least one plane of symmetry.
15. The article carrier of claim 14, wherein the article carrier has two planes of symmetry.
16. A sorting apparatus comprising a plurality of article carriers as claimed in any one of the preceding claims.
17. An article carrier substantially as herein described, with reference to the accompanying drawings.
18. A sorting apparatus comprising an article carrier as herein described, with reference to the accompanying drawings.
PCT/NZ2013/000199 2012-11-08 2013-11-06 Article carrier for a grading apparatus WO2014073987A1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DK13852682.7T DK2917138T3 (en) 2012-11-08 2013-11-06 ARTICLE CARRIER FOR A SORTING DEVICE
JP2015541719A JP2015533649A (en) 2012-11-08 2013-11-06 Article transporter for rating device
US14/441,623 US9527113B2 (en) 2012-11-08 2013-11-06 Article carrier for a grading apparatus
AU2013341875A AU2013341875A1 (en) 2012-11-08 2013-11-06 Article carrier for a grading apparatus
BR112015010460A BR112015010460A2 (en) 2012-11-08 2013-11-06 article support and sorting apparatus
ES13852682T ES2718206T3 (en) 2012-11-08 2013-11-06 Article support for a sorting device
PL13852682T PL2917138T3 (en) 2012-11-08 2013-11-06 Article carrier for a grading apparatus
CN201380057904.1A CN104981419B (en) 2012-11-08 2013-11-06 For the product carrier of screening installation
KR1020157014874A KR20150110476A (en) 2012-11-08 2013-11-06 Article carrier for a grading apparatus
EP13852682.7A EP2917138B1 (en) 2012-11-08 2013-11-06 Article carrier for a grading apparatus
MX2015005709A MX357853B (en) 2012-11-08 2013-11-06 Article carrier for a grading apparatus.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ60348112 2012-11-08
NZ603481 2012-11-08

Publications (2)

Publication Number Publication Date
WO2014073987A1 true WO2014073987A1 (en) 2014-05-15
WO2014073987A8 WO2014073987A8 (en) 2015-05-28

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PCT/NZ2013/000199 WO2014073987A1 (en) 2012-11-08 2013-11-06 Article carrier for a grading apparatus

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US (1) US9527113B2 (en)
EP (1) EP2917138B1 (en)
JP (1) JP2015533649A (en)
KR (1) KR20150110476A (en)
CN (1) CN104981419B (en)
AU (1) AU2013341875A1 (en)
BR (1) BR112015010460A2 (en)
CL (1) CL2015001216A1 (en)
DK (1) DK2917138T3 (en)
ES (1) ES2718206T3 (en)
MX (1) MX357853B (en)
PL (1) PL2917138T3 (en)
TR (1) TR201904813T4 (en)
WO (1) WO2014073987A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20160534A1 (en) * 2016-01-20 2017-07-20 Unitec Spa DISCREET TRANSPORT UNIT FOR BLUEBERRIES AND SIMILAR ORTHOPHYDRATE PRODUCTS
WO2018004362A1 (en) 2016-07-01 2018-01-04 Compac Technologies Limited Conveyor system and article carriers therefor
US11407754B2 (en) 2017-12-28 2022-08-09 Daewoong Pharmaceutical Co., Ltd. Substituted piperidines as kinase inhibitors
WO2023105505A1 (en) * 2021-12-10 2023-06-15 Kennedy Technologies Limited Apparatus and methods relating to sorting objects

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH710660A1 (en) * 2015-01-29 2016-07-29 Wrh Walter Reist Holding Ag Delivery unit for a conveyor and conveyor with at least one such delivery unit.
FR3035087B1 (en) * 2015-04-17 2017-04-21 Maf Agrobotic DEVICE FOR TRANSPORTING OBJECTS AND DEVICE FOR CONVEYING AND WEIGHING EQUIPPED WITH SUCH TRANSPORT DEVICES
IT201700052580A1 (en) * 2017-05-16 2018-11-16 Unitec Spa PLANT FOR TREATMENT OF FRUIT AND VEGETABLE PRODUCTS.
CN108325865B (en) * 2018-03-12 2024-03-19 浙江大学 Single-chain double-support fruit cup device for sorting fruits and vegetables
JP6935940B2 (en) * 2018-07-19 2021-09-15 片山チエン株式会社 Goods sorting device
CN109794418A (en) * 2019-02-28 2019-05-24 广东力生智能有限公司 Tilting pan type sorter
CN109719041A (en) * 2019-02-28 2019-05-07 广东力生智能有限公司 Sort machine trolley tray dumping mechanism
CN110293072B (en) * 2019-07-12 2020-12-15 嘉兴华竹电子有限公司 Marine product packing apparatus capable of automatically classifying according to weight
US11851218B1 (en) * 2019-09-23 2023-12-26 Amazon Technologies, Inc. Material handling apparatus
CN112275649B (en) * 2020-10-19 2022-05-17 杭州托华机器人有限公司 Bearing mechanism, sorting system and working method thereof
WO2022083555A1 (en) * 2020-10-19 2022-04-28 杭州托华机器人有限公司 Sorting and pallet turning device, sorting system and sorting method
US11529653B2 (en) * 2021-01-11 2022-12-20 Durand-Wayland, Inc. Produce sorting systems and methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR688897A (en) 1929-04-15 1930-08-29 Burton Fils Sarl Ets Selective transporter for various objects
US5662206A (en) 1994-12-23 1997-09-02 Mannesmann Aktiengesellschaft Apparatus for sorting conveyor with a tiltable supporting tray
US7222715B2 (en) 2002-06-26 2007-05-29 Color Vision Systems Pty Ltd Fruit handling equipment

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5477955A (en) 1991-10-15 1995-12-26 Colour Vision Systems Pty. Ltd. Conveying system for foodstuffs
US6003653A (en) 1992-12-22 1999-12-21 Horticultural Automation Limited Article grading apparatus
US5677516A (en) 1994-08-23 1997-10-14 Durand-Wayland, Inc. Article weighing and sorting apparatus with improved weigh cup
JP3358327B2 (en) * 1994-10-26 2002-12-16 石川島播磨重工業株式会社 Tray sorter defective tray detector
US5611419A (en) 1995-01-24 1997-03-18 Sunkist Growers, Inc. Monorail conveyor system
CH689786A5 (en) * 1995-02-10 1999-11-15 Grapha Holding Ag Patentwesen Betaetigungsvorrichtung for tilting a component.
FR2730711B1 (en) 1995-02-21 1997-05-09 Materiel Arboriculture DEVICE FOR SUPPLYING A SORTING UNIT OF LONGIFORM PRODUCTS, SUCH AS CARROTS, SORTING UNIT COMPRISING SAME, AND DISPENSING AND CALIBRATING DEVICE FOR THIS SORTING UNIT.
ES1043355Y (en) * 1999-06-29 2000-05-01 Morigi Romana Amaducci IMPROVED CONVEYOR FOR FRUIT SELECTION.
JP5093708B2 (en) * 2000-11-09 2012-12-12 株式会社横崎製作所 Sorting material take-out device for sorting conveyor
CN2513958Y (en) * 2001-09-03 2002-10-02 珠海方博工业有限公司 Pull-down type tripping controllable car
WO2005037453A1 (en) * 2003-10-09 2005-04-28 Fps Food Processing Systems B.V. Carrier for sorting apparatus
FR2924700A1 (en) 2007-12-10 2009-06-12 Materiel Arboriculture Elongated product e.g. cucumber, conveying device for use as sorting and packaging unit, has orienting device rotating main direction of products so that products are oriented with main direction orthogonal to longitudinal direction
DE102008024586A1 (en) * 2008-05-21 2009-11-26 Beumer Maschinenfabrik Gmbh & Co. Kg Sorting system with a vertical sorter
NZ594445A (en) * 2009-01-23 2013-01-25 Maf Agrobotic S A S Fruit handling conveyor comprising a plurality of linked carriages, wherein the carriages release fruit by remote activation
AU2011201654A1 (en) 2010-03-22 2011-10-06 Compac Technologies Limited Article Carrier and Mechanisms Therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR688897A (en) 1929-04-15 1930-08-29 Burton Fils Sarl Ets Selective transporter for various objects
US5662206A (en) 1994-12-23 1997-09-02 Mannesmann Aktiengesellschaft Apparatus for sorting conveyor with a tiltable supporting tray
US7222715B2 (en) 2002-06-26 2007-05-29 Color Vision Systems Pty Ltd Fruit handling equipment

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No relevant documents disclosed *
See also references of EP2917138A4

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20160534A1 (en) * 2016-01-20 2017-07-20 Unitec Spa DISCREET TRANSPORT UNIT FOR BLUEBERRIES AND SIMILAR ORTHOPHYDRATE PRODUCTS
WO2017125873A1 (en) * 2016-01-20 2017-07-27 Unitec S.P.A. Discrete conveyance unit, for blueberries and similar fruit or vegetable products
AU2017208923B2 (en) * 2016-01-20 2019-07-25 Unitec S.P.A. Discrete conveyance unit, for blueberries and similar fruit or vegetable products
RU2733564C2 (en) * 2016-01-20 2020-10-05 Унитек С.П.А. Discrete conveyor device for blueberries and similar fruit or vegetable products
US11254508B2 (en) 2016-01-20 2022-02-22 Unitec S.P.A. Discrete conveyance unit, for blueberries and similar fruit or vegetable products
WO2018004362A1 (en) 2016-07-01 2018-01-04 Compac Technologies Limited Conveyor system and article carriers therefor
US10933446B2 (en) 2016-07-01 2021-03-02 Compac Technologies Limited Conveyor system and article carriers therefor
US11407754B2 (en) 2017-12-28 2022-08-09 Daewoong Pharmaceutical Co., Ltd. Substituted piperidines as kinase inhibitors
WO2023105505A1 (en) * 2021-12-10 2023-06-15 Kennedy Technologies Limited Apparatus and methods relating to sorting objects

Also Published As

Publication number Publication date
CL2015001216A1 (en) 2015-09-25
CN104981419B (en) 2017-06-09
MX2015005709A (en) 2016-06-30
WO2014073987A8 (en) 2015-05-28
EP2917138A1 (en) 2015-09-16
US9527113B2 (en) 2016-12-27
CN104981419A (en) 2015-10-14
EP2917138A4 (en) 2016-06-08
BR112015010460A2 (en) 2017-07-11
PL2917138T3 (en) 2019-08-30
ES2718206T3 (en) 2019-06-28
EP2917138B1 (en) 2019-01-02
AU2013341875A1 (en) 2015-05-07
KR20150110476A (en) 2015-10-02
US20150298175A1 (en) 2015-10-22
TR201904813T4 (en) 2019-04-22
JP2015533649A (en) 2015-11-26
MX357853B (en) 2018-07-26
DK2917138T3 (en) 2019-04-15

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